Cardio
Walking Calorie Calculator
Estimate calories burned from walking using speed, duration, body weight, and incline.
Result
- Medium banana~1.3×
- Slice of pizza~0.5×
- Chocolate chip cookie~0.8×
The same walk at each speed
Same weight, duration and incline; total calories.
Questions people usually ask
How does this estimate walking calories?
The tool uses a MET-based formula: calories = MET × bodyweight (kg) × duration (hours). Level-walking METs come from the 2024 Adult Compendium of Physical Activities (3.8 at 3 mph, 4.8 at a brisk 3.5 mph), and an incline adds the ACSM walking equation's grade term.
Why does incline change calorie burn so much?
Walking uphill increases energy demand from your muscles and cardiovascular system. Higher inclines significantly increase calorie burn versus flat walking.
Should I use bodyweight in kg or pounds?
Either works. The calculator supports metric and imperial input and converts internally to kilograms for the formula.
Is this tool free and private to use?
Yes. AI Fit Hub tools are free, no-signup browser tools. Inputs stay in your browser unless you choose to share a URL.
Do these tools replace medical guidance?
No. These outputs are general fitness estimates — not medical advice.
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Articles
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How Minetti's 2002 J Appl Physiol paper defines energy cost across grades, where the eccentric load tax dominates, and the practical pacing rule.
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Use it from an agent or code
Any agent can run this calculator by URL: put the inputs in the query string and get JSON back, with the inputs that used defaults and a line to cite (add format=md for markdown). MCP clients reach it through https://aifithub.io/mcp.
In code, import the same module; it runs where you import it, with no request or key.
import { compute } from "https://aifithub.io/engines/walking-calorie-calculator.js";Input and output contract, TypeScript types and the guide for agents.